The Molting without Growth of Spiny Lobsters, Panulirus Argus, Kept in a Live Car

A group of spiny lobsters, Panulirus argus, was kept in a live car to test a tagging technique. Records, kept on 10 that molted, show little or no increment in weight or length. There is evidence to rule out the tagging method, which is described, as the cause for inhibited growth; on the other hand, the effects of captivity conditions are considered important. The validity of current concepts of growth rate in this species is questionable since, in general, these are derived from an earlier live-ear study subject to essentially the same conditions as those of the present experiment.